Plant Parasites of Europe

leafminers, galls and fungi

Aceria brachytarsus

Aceria brachytarsus (Keifer, 1939)

walnut pouch gall mite

on Juglans

Aceria brachytarsus: galls on Juglans regia

Juglans regia, Hungary, Mosonmagyaróvár, 14.v.2018 © László Érsek

Aceria brachytarsus: galls on Juglans regia

same leaf, underside

Aceria brachytarsus: galls on Juglans regia

gallen

Aceria brachytarsus: gall on Juglans regia

gall

Aceria brachytarsus: gall on Juglans regia

gal

Aceria brachytarsus: galls on Juglans regia

section

Aceria brachytarsus on Juglans regia

Juglans regia, Belgium, prov. Limbourg, Maasmechelen, Maesbeempder Greend, 20.viii.2019 © Carina Van Steenwinkel

Aceria brachytarsus on Juglans regia

detail

Aceria brachytarsus: galls on Juglans regia

two galls at the underside of the leaf

Aceria brachytarsus: gall, section

vertical section through a gall

gall

The galls resemble those of Aceria tristriata, but they are higher, distinctly conical.

host plants

Juglandaceae, monophagous

Juglans nigra, regia.

synonyms

Aceria brachytarsa; Eriophyes brachytarsus.

notes

The species has been described from California; elsewhere reported from Iran (Xue ao). A picture by Manuel Alvarado on the Spanish website Biodiversidad Virtual in the Sierra Nevada in august 2011 might be the first sign of this species in Europe.

references

Keifer (1952a), Keifer, Baker, Kono ao (1982a), Ripka, Bodor & Érsek (2018a), Xue, Sadeghi & Hong (2009a).

Last modified 17.viii.2020